英语词汇“phototelephony”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

phototelephony n.

Brit.

/ˌfəʊtə(ʊ)tᵻˈlɛfəni/

/ˌfəʊtə(ʊ)tᵻˈlɛfn̩i/

U.S.

/ˌfoʊdoʊtəˈlɛfəni/

/ˌfoʊdoʊˈtɛləˌfoʊni/

rare telephony in which the signal is transmitted by modulating light waves.

ΚΠ

1921 ‘C. Blayre’ Purple Sapphire 58 It is well known that he was engaged in researches upon the development of photo-telephony, and his Observatory was fitted with an arc-light apparatus of exceptionally high voltage.

1921 Nature 27 Oct. 276/1 In phototelephony there are imposed upon a projected beam of light fluctuations of intensity which correspond to the sound-vibrations associated with speech.

1971 Soviet Jrnl. Optical Technol. 38 17 It [sc. a prism] is usually used to reflect a beam back on itself, primarily in phototelephony.

单词	phototelephony
释义	> as lemmas phototelephony phototelephony n. Brit. /ˌfəʊtə(ʊ)tᵻˈlɛfəni/ , /ˌfəʊtə(ʊ)tᵻˈlɛfn̩i/ , U.S. /ˌfoʊdoʊtəˈlɛfəni/ , /ˌfoʊdoʊˈtɛləˌfoʊni/ rare telephony in which the signal is transmitted by modulating light waves. ΚΠ 1921 ‘C. Blayre’ Purple Sapphire 58 It is well known that he was engaged in researches upon the development of photo-telephony, and his Observatory was fitted with an arc-light apparatus of exceptionally high voltage. 1921 Nature 27 Oct. 276/1 In phototelephony there are imposed upon a projected beam of light fluctuations of intensity which correspond to the sound-vibrations associated with speech. 1971 Soviet Jrnl. Optical Technol. 38 17 It [sc. a prism] is usually used to reflect a beam back on itself, primarily in phototelephony. extracted from photo-comb. form < as lemmas
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> as lemmas